"Can it really increase by this much all at once?"
Lin Qi stared at the seven-story tower within the underground cavern, his heart filled with astonishment.
Though he was deep underground at the moment, he could sense the changes throughout Chiyue City. In particular, the free-floating energy in the air far surpassed the Forbidden Zone in both density and purity.
According to the information collected by the Prison Dragon Star warship, if Azure Star's Forbidden Zone energy environment had not been excessively violent, its inherent quality could have rivaled the energy environment of a third-class life planet.
Now, the energy density and purity within Chiyue City were more than ten times that of the Forbidden Zone. Even if this energy environment could not compare with the second-class life planet Prison Dragon Star, the gap was likely not large.
Of course, Chiyue City possessing such dense and pure energy had much to do with the Cultivation Tower itself. It allowed the energy within Chiyue City to far exceed that of the surrounding regions. Even so, Azure Star's energy environment should have reached a level close to that of a second-class life planet.
According to his original estimate, it would already have been impressive if Azure Star could approach the level of a third-class life planet through the Advanced Cultivation Tower's heaven-and-earth-altering effect. After all, it was an entire planet. Raising its energy environment was easier said than done.
Yet now, Azure Star had directly reached a level close to a second-class life planet. Calling such heaven-and-earth-altering power heaven-defying was no longer enough to describe it.
According to his original plan, if Azure Star could approach the level of a third-class life planet, then Chiyue City should reach the level of a third-class life planet. Then, with the Advanced Cultivation Tower's seventh-floor